2656405026 has 48 divisors (see below), whose sum is σ = 6385223520. Its totient is φ = 791324160.

The previous prime is 2656405013. The next prime is 2656405027. The reversal of 2656405026 is 6205046562.

2656405026 is a `hidden beast` number, since 2 + 6 + 5 + 640 + 5 + 0 + 2 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (2656405027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102015 + ... + 125378.

It is an arithmetic number, because the mean of its divisors is an integer number (133025490).

Almost surely, 2^2656405026 is an apocalyptic number.

2656405026 is an abundant number, since it is smaller than the sum of its proper divisors (3728818494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2656405026 is a wasteful number, since it uses less digits than its factorization.

2656405026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227471 (or 227468 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 2656405026 is about 51540.3242713897. The cubic root of 2656405026 is about 1384.9415061291.

The spelling of 2656405026 in words is "two billion, six hundred fifty-six million, four hundred five thousand, twenty-six".